Hello, Ive been trying to solve this problem for the past three days but wasnt successfull. I want to setup an interception proxy with DNAT. SQUID ---> MIKROTIK Router ----> CLIENT PC Squid Configure Options: --enable-ssl --enable-ssl-crtd --enable-icap-client --with-filedescriptors=8192 --enable-ltdl-convenience MY Squid config : ----------------------- # # Recommended minimum configuration: # # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow localhost manager http_access deny manager # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost http_access allow localnet http_access allow localhost http_access deny all http_port 0.0.0.0:8080 http_port 0.0.0.0:3128 intercept #http_port 192.168.10.4:3128 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/usr/local/squid/ssl_cert/myCA.pem #https_port 192.168.10.4:3129 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/usr/local/squid/ssl_cert/myCA.pem cache_dir ufs /usr/local/squid/var/cache/squid 10000 16 256 # Leave coredumps in the first cache dir coredump_dir /usr/local/squid/var/cache/squid # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 always_direct allow all acl broken_sites dstdomain .example.com ssl_bump none localhost ssl_bump none broken_sites ssl_bump server-first sslproxy_cert_error allow all sslproxy_flags DONT_VERIFY_PEER sslproxy_cert_adapt setCommonName #sslproxy_cert_sign signTrusted sslcrtd_program /usr/local/squid/libexec/ssl_crtd -s /usr/local/squid/var/lib/ssl_db -M 10MB sslcrtd_children 5 forwarded_for transparent #visible_hostname cache2.skydsl.net #offline_mode on maximum_object_size 100000 KB ERROR I AM GETTING : ---------------------------------- The following error was encountered while trying to retrieve the URL: http://www.cnn.com/ Connection to 192.168.10.4 failed. The system returned: (111) Connection refused The remote host or network may be down. Please try the request again. ---------------------------------- I tried everything was mentioned at http://wiki.squid-cache.org/ConfigExamples/Intercept/LinuxDnat [root@cache2 ~] # iptables -t nat --list rules -P PREROUTING ACCEPT -P INPUT ACCEPT -P OUTPUT ACCEPT -P POSTROUTING ACCEPT -A PREROUTING -s 192.168.10.4/32 -p tcp -m tcp --dport 80 -j ACCEPT -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 3128 -A POSTROUTING -j MASQUERADE [root@cache2 ~] # iptables -t mangle --list-rules -P PREROUTING ACCEPT -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -P POSTROUTING ACCEPT -A PREROUTING -s 192.168.10.4/32 -p tcp -m tcp --dport 80 -j ACCEPT What do you think the problem might be? I am using Fedora 17 x64. Any suggestions willbe appreciated. Thank you Ghassan
